Nitrazepam delays onset and shortens duration of visual after-images.
D000360:Afterimage / Q000187:drug effects*; D000654:Amobarbital / Q000494:pharmacology*; D006801:Humans; D006993:Hypnotics and Sedatives / Q000494:pharmacology*; D008297:Male; D010919:Placebos; D013997:Time Factors
D006993:Hypnotics and Sedatives; D010919:Placebos; D000654:Amobarbital